400 ASTERACEAE. 



pinnatifid; heads small, in close glomerules on the spiciform short 

 branches and stems; involucre hemispheric; achenes with small 

 epigynous disk. 



Occasional in low moist ground about Los Angeles. Native of 

 Europe. 



3. A. dracunculoides Pursh. Perennial; stems clustered, herba- 

 ceous, 6-12 dm. high, virgately branched, glabrous, pungent-scented 

 when bruised, tasteless; lowest leaves 3-cleft at summit, the others 

 linear, entire; heads numerous, nodding on very slender short 

 peduncles in a close or open panicle, the clusters sometimes secund; 

 involucre hemispheric, about 2 mm. broad; marginal flowers fertile; 

 disk-flowers perfect, sterile. 



Frequent in the valleys and foothills throughout our range. 

 August-October. 



4. A. californica Less. (California Sage.) Shrubby, with 

 numerous ascending branches, 6-12 dm. high, aromatic; leaves 

 cinereous with a minute appressed pubescence, the lowest parted 

 into a few linear filiform segments, the upper entire; heads many, 

 nodding in long racemose leafy panicles; involucre hemispheric, 

 about 4 mm. broad; achenes truncate at summit, with a squamellate 

 or coroniform-dentate pappus. 



Common on dry hillsides in the lower altitudes of the chaparral 

 belt. September-December. 



5. A. parishii Gray. Shrub, 1-2 m. high; herbage cinereous- 

 puberulent; leaves linear to linear-cuneate, entire or the upper 

 3-toothed at apex; panicle loose, 2-3 dm. long; involucre 3.5 mm. 

 high, oblong-campanulate, canescent, 6-7-flowered; achenes sparsely 

 arachnoid- villous. 



Common in Antelope Valley and extending through San Antonio 

 Pass to Newhall, where it was first discovered by Parish. This 

 species is closely related to A. tridentata. 



Tribe 9. SENECIONEAE. Groundsel Trtbe. 



Herbs or sufTrutescent plants with alternate or basal 

 leaves. Involucral bracts little or not at all imbricated, 

 mostly in 1-2 series. Receptacle naked. Pappus- 

 bristles soft, commonly copious and usually white. 



Shrubby or sufifrutescent plants. 

 Rays wanting. 



Bracts imbricated; leaves mostly scale- 

 like. 62. Lepidospartum. 

 Bracts in 1 series; herbage woolly. 63, Tetradymia. 

 Rays present. 64. Senecio. 

 rbs; rays present or wanting. 64. Senecio. 



Herbs 



